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Initial learning curve, annual case volume key in TAVR outcomes

A learning curve of at least 225 procedures is required for hospitals to perform transcatheter aortic valve replacements (TAVRs) with the lowest mortality rates, suggests a study of 16 centers participating in an international registry. “Results from the study report here … suggest that there is a danger of lowering TAVR quality of care by doing away or relaxing volume requirements,” wrote John D. Carroll, a cardiologist with the CU School of Medicine, in an accompanying editorial.